SUPER MICRO Computer H8SCM Computer Hardware User Manual


 
4-8
H8SCM(-F) SERVERBOARD USER'S MANUAL
PIO Mode
PIO (Programmable I/O) mode programs timing cycles between the IDE drive
and the programmable IDE controller. As the PIO mode increases, the cycle
time decreases.
The options are Auto, 0, 1, 2, 3, and 4. Select Auto to allow BIOS to auto
detect the PIO mode. Use this value if the IDE disk drive support cannot be
determined. Select 0 to allow BIOS to use PIO mode 0, which has a data
transfer rate of 3.3 MBs. Select 1 to allow BIOS to use PIO mode 1, which has
a data transfer rate of 5.2 MBs. Select 2 to allow BIOS to use PIO mode 2,
which has a data transfer rate of 8.3 MBs. Select 3 to allow BIOS to use PIO
mode 3, which has a data transfer rate of 11.1 MBs. Select 4 to allow BIOS
to use PIO mode 4, which has a data transfer rate of 16.6 MBs. This setting
generally works with all hard disk drives manufactured after 1999. For other
disk drives, such as IDE CD-ROM drives, check the speci cations of the drive.
DMA Mode
Selects the DMA Mode. Options are Auto, SWDMA0, SWDMA1, SWDMA2,
MWDMA0. MDWDMA1, MWDMA2, UDMA0. UDMA1, UDMA2, UDMA3,
UDMA4 and UDMA5. (SWDMA=Single Word DMA, MWDMA=Multi Word
DMA, UDMA=UltraDMA.)
S.M.A.R.T.
Self-Monitoring Analysis and Reporting Technology (SMART) can help
predict impending drive failures. Select "Auto" to allow BIOS to auto detect
hard disk drive support. Select "Disabled" to prevent AMI BIOS from using
the S.M.A.R.T. Select "Enabled" to allow AMI BIOS to use the S.M.A.R.T.
to support hard drive disk. The options are Disabled, Enabled, and Auto.
32-Bit Data Transfer
Select "Enabled" to activate the function of 32-Bit data transfer. Select
"Disabled" to deactivate the function. The options are Enabled and Disabled.
IDE Detect Timeout (Sec)
Use the +/- keys to adjust and select the time out for detecting ATA/ATAPI
devices. The default value is 35.